[Elecraft] Up- and Downgrading the K3

[Lyle Johnson]

> For example a K3 with subreceiver would not be a legal TRX for the IARU Region 1
> FD in the "limited" class. In this class no secondary RXs are allowed, so to
> legalize the K3, the KRX3 would need to be removed.
> 
> A major open heart operation? Something which can done in a few minutes the field?

Or just set the subreceiver AF GAIN to zero?

73,

Lyle KK7P